File:Dark Photons.png

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Summary[edit]

Media data and Non-free use rationale
Description	Dark Photon decays into a pair of electron and positron.
Author or copyright owner	APS/Alan Stonebraker
Source (WP:NFCC#4)	https://physics.aps.org/articles/v7/115
Date of publication	November 10, 2014
Use in article (WP:NFCC#7)	Dual photon
Purpose of use in article (WP:NFCC#8)	To support encyclopedic discussion of this work in this article. The illustration is specifically needed to support the following point(s): The dark photon can potentially decay into electron-positron pairs.
Not replaceable with free media because (WP:NFCC#1)	n.a.
Minimal use (WP:NFCC#3)	Don't use more files per article/topic than necessary
Respect for commercial opportunities (WP:NFCC#2)	n.a.
Other information	Researchers have studied electron-positron (e+e−) collisions for interactions that produce a normal photon γ and a dark photon A′ that interacts with ordinary matter particles. The dark photon can potentially decay into an e+e− pair (shown here) or a μ+μ− pair (not shown). However, the latest results from the BaBar collaboration offer no sign of dark photons, thus placing new limits on these types of models.
Fair useFair use of copyrighted material in the context of Dual photon//en.wikipedia.org/wiki/File:Dark_Photons.pngtrue

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	22:02, 9 July 2017		300 × 228 (22 KB)	Grav25744535 (talk \| contribs)	Uploading a non-free work, as object of commentary using File Upload Wizard

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Dual photon

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Short title	Print
Unique ID of original document	uuid:5D20892493BFDB11914A8590D31508C8
Software used	Adobe Illustrator CS6 (Macintosh)